Mark Miller wrote: > Jonathan Ariel wrote: > >> How can I check which is the GC that it is being used? If I'm right JVM >> Ergonomics should use the Throughput GC, but I'm not 100% sure. Do you have >> any recommendation on this? >> >> >> > Just to straighten out this one too - Ergonomics doesn't use throughput > - throughput is the collector that allows Ergonomics ;) > > And throughput is the default as long as your machine is detected as > server class. > > But throughput is not great with large tenured spaces out of the box. It > only parallelizes the new space collection. You have to turn on an > option to get parallel tenured collection as well - which is essential > to scale to large heap sizes. > > hmm - I'm not being totally accurate there - ergonomics is what detects server and so makes throughput the default collector for a server machine. But much of the GC ergonomics support only works with the throughput collector. Kind of chicken and egg :)
-- - Mark http://www.lucidimagination.com
